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Part-Time Lead Engineer — Android/Kotlin & AI Backend
Lead Engineer builds Android/Kotlin apps and Node.js backend services, integrating AI features while collaborating with the founder and team.
Senior Full Stack Software Developer
Build full-stack apps using .NET/C# and Python, with Angular/Vue.js frontends and Azure cloud services, while designing robust APIs and databases.
Junior+ QA Engineer
QA Engineer tests new features and releases for an EdTech marketplace platform, ensuring smooth user experience for students and tutors across multiple countries.
Principal Software Engineer, Gameplay - Teamfight Tactics
Principal Software Engineer at Riot Games builds core gameplay features and systems for Teamfight Tactics using Unreal Engine, C++, and cross-platform tools, while collaborating with artists, designers, and other engineers.
Senior Account Executive, Business Verticals (Hybrid @ Bellevue)
About the Role OfferUp is looking for an experienced, bilingual (Spanish/English) Inside Sales Senior Account Executive to lead the charge across our Business Verticals. This role is pivotal in defining our offering…
Android Application Developer
Build and maintain Android apps in Kotlin for Ubiquiti’s networking and smart-home devices, collaborating with firmware and backend teams to deliver device setup and control features.
Android Developer
Builds and maintains Ubiquiti’s Android apps, focusing on clean code, networking, and user experience with Kotlin and RxJava.
Hardware Engineer Manager (Embedded System)
Lead hardware architecture and design for embedded systems powering network-connected devices, collaborating with firmware and manufacturing teams from concept to production.
QA Engineer
QA Engineer in Prague tests Ubiquiti's UniFi desktop and mobile apps across platforms, evaluates features for usability and quality, and collaborates with teams to ensure reliable releases.
Senior Android Developer - UniFi Design App
Build and maintain Android apps for Ubiquiti’s networking and smart-home products, using Kotlin, RxJava, and REST APIs in a global agile team.
Lead Android Automotive Framework Developer
Lead the development of Android Automotive Framework components (SystemUI, Homescreen) for next-gen in-vehicle infotainment systems using Kotlin/Java and AOSP.
Senior Product Manager - Mobile (m/w/d) - German speaking - Berlin
Own the mobile apps (iOS, Android, Smartwatch) for a Berlin healthcare startup that builds discreet emergency-call tech for seniors, driving growth through data-driven UX and A/B testing.
Full Stack Angular Developer
Build and maintain cross-platform web and mobile apps using Angular, Ionic, and .NET, while integrating secure REST APIs and deploying cloud solutions on AWS.
Mid-Level C# / Full-Stack Developer working on global enterprise scale software
Build and evolve enterprise-scale SaaS for global supply-chain operations using C#/.NET MVC, SQL Server, and cloud-native upgrades to .NET Core, Kubernetes, and React.
Full Stack Blockchain Developer
Builds and tests blockchain platforms and apps using Hedera Hashgraph, Ethereum (Solidity), and Hyperledger, with exposure to cryptocurrencies and mobile/big-data tech.
Senior Full Stack Engineer
Build and maintain the Feeld mobile app and backend systems using TypeScript, AWS, and React Native, focusing on scalable features like onboarding, chat, and Member care.
FullStack Engineer, AdTech
Builds and scales end-to-end promotions systems (backend services + React tools) for merchants, driving growth via discounts/incentives while owning cross-team initiatives from ideation to delivery.
Full Stack Engineer
Build and ship full-stack features for a UK challenger bank’s mobile and web apps using React, Node.js, AWS, and AI tools like Copilot, while owning code from architecture to production monitoring.
FullStack Engineer, AdTech
Build and maintain scalable promotions systems and merchant-facing web apps using React, Kotlin, Python, and Go to drive growth for restaurants and brands.